Warning: Permanently added '10.128.1.42' (ECDSA) to the list of known hosts. 2022/12/13 22:20:06 fuzzer started 2022/12/13 22:20:06 dialing manager at 10.128.0.163:44801 2022/12/13 22:20:07 syscalls: 3532 2022/12/13 22:20:07 code coverage: enabled 2022/12/13 22:20:07 comparison tracing: ioctl(KCOV_TRACE_CMP) failed: invalid argument 2022/12/13 22:20:07 extra coverage: extra coverage is not supported by the kernel 2022/12/13 22:20:07 delay kcov mmap: mmap returned an invalid pointer 2022/12/13 22:20:07 setuid sandbox: enabled 2022/12/13 22:20:07 namespace sandbox: enabled 2022/12/13 22:20:07 Android sandbox: /sys/fs/selinux/policy does not exist 2022/12/13 22:20:07 fault injection: enabled 2022/12/13 22:20:07 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2022/12/13 22:20:07 net packet injection: enabled 2022/12/13 22:20:07 net device setup: enabled 2022/12/13 22:20:07 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/12/13 22:20:07 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/12/13 22:20:07 NIC VF setup: PCI device 0000:00:11.0 is not available 2022/12/13 22:20:07 USB emulation: /dev/raw-gadget does not exist 2022/12/13 22:20:07 hci packet injection: enabled 2022/12/13 22:20:07 wifi device emulation: kernel 4.17 required (have 4.14.301-syzkaller) 2022/12/13 22:20:07 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 2022/12/13 22:20:07 fetching corpus: 0, signal 0/2000 (executing program) 2022/12/13 22:20:07 fetching corpus: 50, signal 45005/48762 (executing program) 2022/12/13 22:20:07 fetching corpus: 100, signal 70199/75654 (executing program) 2022/12/13 22:20:08 fetching corpus: 150, signal 89012/96091 (executing program) 2022/12/13 22:20:08 fetching corpus: 200, signal 108066/116641 (executing program) 2022/12/13 22:20:08 fetching corpus: 250, signal 117511/127642 (executing program) 2022/12/13 22:20:08 fetching corpus: 300, signal 131674/143201 (executing program) 2022/12/13 22:20:09 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corpus: 5100, signal 415401/507555 (executing program) 2022/12/13 22:20:28 fetching corpus: 5150, signal 416300/509141 (executing program) [ 49.629015] ================================================================== [ 49.636458] BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x1360/0x17d0 [ 49.643910] Read of size 8 at addr ffff88809631fb68 by task syz-fuzzer/8008 [ 49.650986] [ 49.652594] CPU: 1 PID: 8008 Comm: syz-fuzzer Not tainted 4.14.301-syzkaller #0 [ 49.660016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 49.669352] Call Trace: [ 49.671915] [ 49.674046] dump_stack+0x1b2/0x281 [ 49.677654] print_address_description.cold+0x54/0x1d3 [ 49.682906] kasan_report_error.cold+0x8a/0x191 [ 49.687551] ? unwind_next_frame+0x1360/0x17d0 [ 49.692107] __asan_report_load8_noabort+0x68/0x70 [ 49.697009] ? unwind_next_frame+0x1360/0x17d0 [ 49.701563] unwind_next_frame+0x1360/0x17d0 [ 49.705947] ? retint_kernel+0x2d/0x2d [ 49.709807] ? deref_stack_reg+0x1a0/0x1a0 [ 49.714014] ? retint_kernel+0x2d/0x2d [ 49.717873] __save_stack_trace+0x90/0x160 [ 49.722088] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 49.727516] ? ep_read_events_proc+0x440/0x440 [ 49.732157] kasan_kmalloc+0xeb/0x160 [ 49.735932] ? kasan_kmalloc+0xeb/0x160 [ 49.739879] ? kmem_cache_alloc_node+0x133/0x410 [ 49.744607] ? __alloc_skb+0x5c/0x510 [ 49.748382] ? __napi_alloc_skb+0x57/0x2d0 [ 49.752592] ? page_to_skb+0x7b/0x820 [ 49.756370] ? receive_buf+0x1f71/0x4d70 [ 49.760407] ? virtnet_poll+0x4b7/0x960 [ 49.764359] ? net_rx_action+0x466/0xfd0 [ 49.768396] ? __do_softirq+0x24d/0x9ff [ 49.772342] ? irq_exit+0x193/0x240 [ 49.775941] ? do_IRQ+0x112/0x1d0 [ 49.779368] ? common_interrupt+0x93/0x93 [ 49.783486] ? lock_acquire+0x97/0x3f0 [ 49.787352] ? ep_scan_ready_list+0x637/0x7e0 [ 49.791820] ? retint_kernel+0x2d/0x2d [ 49.795768] ? ip_local_deliver+0x460/0x460 [ 49.800065] ? consume_skb+0x27d/0x380 [ 49.803927] ? ip_local_deliver_finish+0xab0/0xab0 [ 49.808851] ? __lock_acquire+0x5fc/0x3f20 [ 49.813059] ? is_skb_forwardable+0x1e0/0x1e0 [ 49.817528] ? tcp4_gro_receive+0x498/0x790 [ 49.821834] ? should_fail+0x327/0x3f0 [ 49.825697] ? kmem_cache_alloc_node+0x2f8/0x410 [ 49.830449] kmem_cache_alloc_node+0x133/0x410 [ 49.835005] __alloc_skb+0x5c/0x510 [ 49.838694] __napi_alloc_skb+0x57/0x2d0 [ 49.842741] page_to_skb+0x7b/0x820 [ 49.846343] receive_buf+0x1f71/0x4d70 [ 49.850208] ? __lock_acquire+0x5fc/0x3f20 [ 49.854416] ? virtnet_xdp_xmit.constprop.0+0x780/0x780 [ 49.859760] ? detach_buf+0x422/0x580 [ 49.863618] ? __lock_acquire+0x5fc/0x3f20 [ 49.867828] ? virtqueue_get_buf_ctx+0x3d9/0x6b0 [ 49.872556] ? check_preemption_disabled+0x35/0x240 [ 49.877559] virtnet_poll+0x4b7/0x960 [ 49.881336] ? try_fill_recv+0x17b0/0x17b0 [ 49.885546] ? net_rx_action+0x244/0xfd0 [ 49.889582] net_rx_action+0x466/0xfd0 [ 49.893463] ? napi_gro_frags+0x8f0/0x8f0 [ 49.897701] ? sched_clock+0x2a/0x40 [ 49.901396] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 49.906826] __do_softirq+0x24d/0x9ff [ 49.910607] ? check_preemption_disabled+0x35/0x240 [ 49.915600] irq_exit+0x193/0x240 [ 49.919027] do_IRQ+0x112/0x1d0 [ 49.922283] common_interrupt+0x93/0x93 [ 49.926232] [ 49.928450] RIP: 0010:lock_acquire+0x97/0x3f0 [ 49.932913] RSP: 0018:ffff88809631fa48 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffad [ 49.940679] RAX: 1ffffffff11e13d8 RBX: ffff8880b34e0240 RCX: 0000000000000000 [ 49.947924] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880b34e0ac4 [ 49.955166] RBP: ffff8880a402a598 R08: 0000000000000001 R09: 0000000000000000 [ 49.962409] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 49.969666] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 49.976924] ? ep_scan_ready_list+0x637/0x7e0 [ 49.981403] ep_scan_ready_list+0x637/0x7e0 [ 49.985705] ? __mutex_lock+0xc4/0x1310 [ 49.989738] ? ep_scan_ready_list+0x637/0x7e0 [ 49.994217] ? retint_kernel+0x2d/0x2d [ 49.998085] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 50.003077] ? ep_scan_ready_list+0x637/0x7e0 [ 50.007565] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 50.012997] retint_kernel+0x2d/0x2d [ 50.016700] RIP: a402a500:ep_send_events_proc+0x0/0x9c0 [ 50.022037] RSP: 9631fc58:0000000000000000 EFLAGS: ffff88809631fd78 ORIG_RAX: ffffffffffffffad [ 50.030784] RAX: ffff8880b34e0240 RBX: ffffffff819688e0 RCX: 1ffff11012c63f87 [ 50.038035] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a402a538 [ 50.045291] RBP: ffff8880a402a500 R08: ffffffff8196b9d7 R09: 0000000000000000 [ 50.052546] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809631fd78 [ 50.059794] R13: 0000000000000000 R14: ffff88809631fc58 R15: 0000000000000000 [ 50.067051] ? ep_read_events_proc+0x440/0x440 [ 50.071607] ? ep_scan_ready_list+0x637/0x7e0 [ 50.076080] ? ep_scan_ready_list+0x637/0x7e0 [ 50.080557] ? lock_downgrade+0x740/0x740 [ 50.084677] ? ep_eventpoll_release+0x60/0x60 [ 50.089146] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 50.094224] ? ep_poll+0x234/0xa50 [ 50.097737] ? ep_poll_readyevents_proc+0x90/0x90 [ 50.102642] ? lock_downgrade+0x740/0x740 [ 50.106765] ? __fget+0x265/0x3e0 [ 50.110201] ? wake_up_q+0xd0/0xd0 [ 50.113717] ? SyS_epoll_wait+0x150/0x1a0 [ 50.117838] ? SyS_epoll_pwait+0x1e9/0x230 [ 50.122134] ? SyS_epoll_wait+0x1a0/0x1a0 [ 50.126265] ? kernel_write+0x110/0x110 [ 50.130218] ? do_syscall_64+0x4c/0x640 [ 50.134167] ? SyS_epoll_wait+0x1a0/0x1a0 [ 50.138289] ? do_syscall_64+0x1d5/0x640 [ 50.142328] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 50.147675] [ 50.149277] The buggy address belongs to the page: [ 50.154177] page:ffffea000258c7c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 50.162296] flags: 0xfff00000000000() [ 50.166069] raw: 00fff00000000000 0000000000000000 0000000000000000 00000000ffffffff [ 50.173933] raw: 0000000000000000 0000000100000001 0000000000000000 0000000000000000 [ 50.181789] page dumped because: kasan: bad access detected [ 50.187484] [ 50.189086] Memory state around the buggy address: [ 50.193996] ffff88809631fa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 50.201327] ffff88809631fa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 50.208669] >ffff88809631fb00: 00 f1 f1 f1 f1 00 00 00 f2 00 00 00 f2 f2 f2 00 [ 50.216018] ^ [ 50.222748] ffff88809631fb80: 00 00 00 00 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 [ 50.230085] ffff88809631fc00: 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f3 f3 00 [ 50.237419] ================================================================== [ 50.244747] Disabling lock debugging due to kernel taint [ 50.250725] Kernel panic - not syncing: panic_on_warn set ... [ 50.250725] [ 50.258081] CPU: 1 PID: 8008 Comm: syz-fuzzer Tainted: G B 4.14.301-syzkaller #0 [ 50.266812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 50.276585] Call Trace: [ 50.279149] [ 50.281287] dump_stack+0x1b2/0x281 [ 50.284905] panic+0x1f9/0x42d [ 50.288084] ? add_taint.cold+0x16/0x16 [ 50.292039] kasan_end_report+0x43/0x49 [ 50.295986] kasan_report_error.cold+0xa7/0x191 [ 50.300627] ? unwind_next_frame+0x1360/0x17d0 [ 50.305181] __asan_report_load8_noabort+0x68/0x70 [ 50.310083] ? unwind_next_frame+0x1360/0x17d0 [ 50.314636] unwind_next_frame+0x1360/0x17d0 [ 50.319017] ? retint_kernel+0x2d/0x2d [ 50.322877] ? deref_stack_reg+0x1a0/0x1a0 [ 50.327082] ? retint_kernel+0x2d/0x2d [ 50.330941] __save_stack_trace+0x90/0x160 [ 50.335169] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 50.340591] ? ep_read_events_proc+0x440/0x440 [ 50.345150] kasan_kmalloc+0xeb/0x160 [ 50.348924] ? kasan_kmalloc+0xeb/0x160 [ 50.352869] ? kmem_cache_alloc_node+0x133/0x410 [ 50.357607] ? __alloc_skb+0x5c/0x510 [ 50.361378] ? __napi_alloc_skb+0x57/0x2d0 [ 50.365671] ? page_to_skb+0x7b/0x820 [ 50.369442] ? receive_buf+0x1f71/0x4d70 [ 50.373476] ? virtnet_poll+0x4b7/0x960 [ 50.377421] ? net_rx_action+0x466/0xfd0 [ 50.381455] ? __do_softirq+0x24d/0x9ff [ 50.385399] ? irq_exit+0x193/0x240 [ 50.388996] ? do_IRQ+0x112/0x1d0 [ 50.392421] ? common_interrupt+0x93/0x93 [ 50.396539] ? lock_acquire+0x97/0x3f0 [ 50.400399] ? ep_scan_ready_list+0x637/0x7e0 [ 50.404864] ? retint_kernel+0x2d/0x2d [ 50.408727] ? ip_local_deliver+0x460/0x460 [ 50.413022] ? consume_skb+0x27d/0x380 [ 50.416882] ? ip_local_deliver_finish+0xab0/0xab0 [ 50.421784] ? __lock_acquire+0x5fc/0x3f20 [ 50.426005] ? is_skb_forwardable+0x1e0/0x1e0 [ 50.430474] ? tcp4_gro_receive+0x498/0x790 [ 50.434764] ? should_fail+0x327/0x3f0 [ 50.438622] ? kmem_cache_alloc_node+0x2f8/0x410 [ 50.443350] kmem_cache_alloc_node+0x133/0x410 [ 50.447905] __alloc_skb+0x5c/0x510 [ 50.451505] __napi_alloc_skb+0x57/0x2d0 [ 50.455538] page_to_skb+0x7b/0x820 [ 50.459139] receive_buf+0x1f71/0x4d70 [ 50.463003] ? __lock_acquire+0x5fc/0x3f20 [ 50.467209] ? virtnet_xdp_xmit.constprop.0+0x780/0x780 [ 50.472547] ? detach_buf+0x422/0x580 [ 50.476317] ? __lock_acquire+0x5fc/0x3f20 [ 50.480527] ? virtqueue_get_buf_ctx+0x3d9/0x6b0 [ 50.485255] ? check_preemption_disabled+0x35/0x240 [ 50.490251] virtnet_poll+0x4b7/0x960 [ 50.494025] ? try_fill_recv+0x17b0/0x17b0 [ 50.498232] ? net_rx_action+0x244/0xfd0 [ 50.502264] net_rx_action+0x466/0xfd0 [ 50.506124] ? napi_gro_frags+0x8f0/0x8f0 [ 50.510244] ? sched_clock+0x2a/0x40 [ 50.513930] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 50.519351] __do_softirq+0x24d/0x9ff [ 50.523123] ? check_preemption_disabled+0x35/0x240 [ 50.528115] irq_exit+0x193/0x240 [ 50.531541] do_IRQ+0x112/0x1d0 [ 50.534792] common_interrupt+0x93/0x93 [ 50.538755] [ 50.540965] RIP: 0010:lock_acquire+0x97/0x3f0 [ 50.545426] RSP: 0018:ffff88809631fa48 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffad [ 50.553107] RAX: 1ffffffff11e13d8 RBX: ffff8880b34e0240 RCX: 0000000000000000 [ 50.560347] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880b34e0ac4 [ 50.567590] RBP: ffff8880a402a598 R08: 0000000000000001 R09: 0000000000000000 [ 50.574851] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 50.582091] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 50.589354] ? ep_scan_ready_list+0x637/0x7e0 [ 50.593822] ep_scan_ready_list+0x637/0x7e0 [ 50.598116] ? __mutex_lock+0xc4/0x1310 [ 50.602061] ? ep_scan_ready_list+0x637/0x7e0 [ 50.606528] ? retint_kernel+0x2d/0x2d [ 50.610393] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 50.615419] ? ep_scan_ready_list+0x637/0x7e0 [ 50.619888] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 50.625309] retint_kernel+0x2d/0x2d [ 50.628996] RIP: a402a500:ep_send_events_proc+0x0/0x9c0 [ 50.634327] RSP: 9631fc58:0000000000000000 EFLAGS: ffff88809631fd78 ORIG_RAX: ffffffffffffffad [ 50.643052] RAX: ffff8880b34e0240 RBX: ffffffff819688e0 RCX: 1ffff11012c63f87 [ 50.650293] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a402a538 [ 50.657533] RBP: ffff8880a402a500 R08: ffffffff8196b9d7 R09: 0000000000000000 [ 50.664775] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809631fd78 [ 50.672020] R13: 0000000000000000 R14: ffff88809631fc58 R15: 0000000000000000 [ 50.679269] ? ep_read_events_proc+0x440/0x440 [ 50.683822] ? ep_scan_ready_list+0x637/0x7e0 [ 50.688290] ? ep_scan_ready_list+0x637/0x7e0 [ 50.692757] ? lock_downgrade+0x740/0x740 [ 50.696875] ? ep_eventpoll_release+0x60/0x60 [ 50.701341] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 50.706414] ? ep_poll+0x234/0xa50 [ 50.709929] ? ep_poll_readyevents_proc+0x90/0x90 [ 50.714742] ? lock_downgrade+0x740/0x740 [ 50.718862] ? __fget+0x265/0x3e0 [ 50.722287] ? wake_up_q+0xd0/0xd0 [ 50.725798] ? SyS_epoll_wait+0x150/0x1a0 [ 50.729917] ? SyS_epoll_pwait+0x1e9/0x230 [ 50.734121] ? SyS_epoll_wait+0x1a0/0x1a0 [ 50.738240] ? kernel_write+0x110/0x110 [ 50.742183] ? do_syscall_64+0x4c/0x640 [ 50.746131] ? SyS_epoll_wait+0x1a0/0x1a0 [ 50.750250] ? do_syscall_64+0x1d5/0x640 [ 50.754284] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 50.759789] Kernel Offset: disabled [ 50.763396] Rebooting in 86400 seconds..